link directly to sommelier

Change-Id: I677c45c5b84f2b377ccc113ec53a03daf9d6384d
Reviewed-on: https://chromium-review.googlesource.com/1068987
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
diff --git a/README.md b/README.md
index c1cf64a..8866c6a 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # (OBSOLETE) Debian virtwl-patched wayland clients
 
 ## Overview
-These packages are no longer needed with sommelier.
+These packages are no longer needed with [sommelier](https://chromium.googlesource.com/chromiumos/platform2/+/master/vm_tools/sommelier/).
 
 These are Debian source packages that have been patched to support virtwl
 shmem allocation.